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<html lang="en"><head> <title>Bootstrap Example</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="../../maxcdn.bootstrapcdn.com/bootstrap/3.4.0/css/bootstrap.min.css"> <script src="../../ajax.googleapis.com/ajax/libs/jquery/3.4.0/jquery.min.js"></script> <script src="../../maxcdn.bootstrapcdn.com/bootstrap/3.4.0/js/bootstrap.min.js"></script></head><body><div class="container"> <h2>Help text</h2> <p>Use the .help-block class to add a block level help text in forms:</p> <form> <div class="form-group"> <label for="pwd">Password:</label> <input type="password" class="form-control" id="pwd" placeholder="Enter password"> <span class="help-block">This is some help text that breaks onto a new line and may extend more than one line.</span> </div> <button type="submit" class="btn btn-default">Submit</button> </form></div></body><!-- Mirrored from www.w3schools.com/bootstrap/tryit.asp?filename=trybs_input_help-block&stacked=h by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 05 Jun 2019 12:27:05 GMT -->